import Vue from 'vue'
import Vuex from 'vuex'

Vue.use(Vuex)

export default new Vuex.Store({
  state: {
    books: [
      {"id": 1, "title": "Python编程", "author": "John Doe", "copies": 4},
      {"id": 2, "title": "历史的秘密", "author": "Jane Smith", "copies": 3},
      {"id": 3, "title": "宇宙探索", "author": "Emily Brown", "copies": 2},
      {"id": 4, "title": "健康生活", "author": "Mike Johnson", "copies": 5},
      {"id": 5, "title": "数学之美", "author": "Sarah Lee", "copies": 4},
      {"id": 6, "title": "艺术欣赏", "author": "David White", "copies": 3},
      {"id": 7, "title": "编程入门", "author": "Alice Green", "copies": 2},
      {"id": 8, "title": "科幻世界", "author": "Frank Black", "copies": 5},
      {"id": 9, "title": "自然奇观", "author": "Grace Blue", "copies": 4},
      {"id": 10, "title": "音乐之声", "author": "Tom Red", "copies": 3}
    ]
  },
  getters: {
  },
  mutations: {
    addBook(state, book) {
      state.books.push({
        ...book,
        id: state.books.length + 1
      });
    },
    deleteBook(state, id) {
      state.books = state.books.filter(book => book.id !== id);
    }
  },
  actions: {
  },
  modules: {
  }
})